Open Access

Fig. 10.

image

Download original image

Section of the SDSS spectrum of the z = 2.637 quasar SDSS J121822.83+083157.0 (‘QB’ in Fig. 2) located 109 arcsec west of Q 1218+0832 (‘QA’ in Fig. 2). Vertical lines indicate the expected positions of H I, Si IV, and C IV absorption lines at the redshift of the DLA, z = 2.2261. The inset shows a zoom-in on the region around Lyman-α. No significant absorption was detected at that redshift. The metal lines seen in the spectrum are from an associated zabs > zem system at z = 2.650.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.